CIENA (CIEN) Form 144 Filed for 1,747 Restricted Shares Sale

Rhea-AI Filing Summary

Form 144 filed for CIENA CORP (CIEN) reports a proposed sale of 1,747 restricted common shares through Morgan Stanley Smith Barney LLC with an aggregate market value of $250,554.74. The filer reports 141,055,908 shares outstanding for the class and identifies an approximate sale date of 10/01/2025.

The securities were acquired as restricted stock from the issuer on 09/20/2025, with payment and acquisition dates matching 09/20/2025. The filer indicates no securities sold in the past three months for the account. The notice includes the required representation that the seller is not aware of undisclosed material adverse information.

Positive

• Complete Rule 144 disclosure including broker, share count, aggregate market value, acquisition details, and seller attestation
• No securities sold in past three months reported, simplifying aggregation considerations under Rule 144
• Use of a listed broker (Morgan Stanley Smith Barney LLC) indicates a standard, regulated execution channel

Negative

• None.

Insights

Financial Analyst

TL;DR: Small insider sale disclosed; size is immaterial relative to total outstanding shares.

The filing shows a proposed disposition of 1,747 restricted shares valued at $250,554.74, against 141,055,908 shares outstanding. That represents a de minimis fraction of the outstanding class, so it is unlikely to be material to CIEN's capital structure or market liquidity. The sale uses a listed broker, which follows standard Rule 144 procedures. No prior sales in the past three months are reported, and acquisition and payment were documented as 09/20/2025, consistent with a restricted stock issuance followed by a Rule 144 notice.

Corporate Governance Expert

TL;DR: Disclosure meets Rule 144 content requirements; transaction appears routine and administrative.

The form lists the broker, exact share count, acquisition source (the issuer), acquisition and payment dates, and the filer’s attestation about material nonpublic information. These elements satisfy typical compliance expectations for an insider or control-person sale under Rule 144. Given the limited size of the proposed sale relative to total outstanding shares, this filing reads as a routine compliance disclosure rather than a governance red flag.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	1747	250554.74	141055908	10/01/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/20/2025	Restricted Stock	ISSUER			1747	09/20/2025	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the CIEN Form 144 report?

The form reports a proposed sale of 1,747 restricted common shares of CIENA CORP with an aggregate market value of $250,554.74.

When were the shares acquired and from whom (CIEN)?

The shares were acquired as restricted stock from the issuer on 09/20/2025 with payment recorded on the same date.

When is the approximate sale date listed on the CIEN Form 144?

The approximate date of sale is listed as 10/01/2025.

Which broker is handling the proposed sale for CIEN?

The broker named is Morgan Stanley Smith Barney LLC, Executive Financial Services, 1 New York Plaza, 8th Floor, New York, NY 10004.

Has the filer sold any CIEN securities in the past three months?

The form states Nothing to Report for securities sold during the past three months.